<table border="1" mj_done="true">
    <thead>
    <tr>
        <th>序号</th>
        <th>编号</th>
        <th>题目</th>
        <th>通过率</th>
        <th>难度</th>
        <th>出题指数</th>
        <th>出现频率</th>
    </tr>
    </thead>
    <tbody>
    <tr>
        <td>1</td>
        <td>433</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-genetic-mutation/">最小基因变化</a></td>
        <td>48.3%</td>
        <td>中等</td>
        <td>5</td>
        <td>3.645</td>
    </tr>
    <tr>
        <td>2</td>
        <td>20</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-parentheses/">有效的括号</a></td>
        <td>40.8%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.33</td>
    </tr>
    <tr>
        <td>3</td>
        <td>341</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/flatten-nested-list-iterator/">扁平化嵌套列表迭代器</a></td>
        <td>62.0%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.903</td>
    </tr>
    <tr>
        <td>4</td>
        <td>635</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-log-storage-system/">设计日志存储系统</a></td>
        <td>53.3%</td>
        <td>中等</td>
        <td>4</td>
        <td>3.969</td>
    </tr>
    <tr>
        <td>5</td>
        <td>62</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/unique-paths/">不同路径</a></td>
        <td>58.7%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.406</td>
    </tr>
    <tr>
        <td>6</td>
        <td>57</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/insert-interval/">插入区间</a></td>
        <td>36.8%</td>
        <td>困难</td>
        <td>4</td>
        <td>1.135</td>
    </tr>
    <tr>
        <td>7</td>
        <td>56</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-intervals/">合并区间</a></td>
        <td>40.2%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.479</td>
    </tr>
    <tr>
        <td>8</td>
        <td>256</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/paint-house/">粉刷房子</a></td>
        <td>57.1%</td>
        <td>简单</td>
        <td>4</td>
        <td>2.123</td>
    </tr>
    <tr>
        <td>9</td>
        <td>647</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindromic-substrings/">回文子串</a></td>
        <td>60.5%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.997</td>
    </tr>
    <tr>
        <td>10</td>
        <td>1</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/two-sum/">两数之和</a></td>
        <td>47.5%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.065</td>
    </tr>
    <tr>
        <td>11</td>
        <td>269</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/alien-dictionary/">火星词典</a></td>
        <td>39.6%</td>
        <td>困难</td>
        <td>3</td>
        <td>2.679</td>
    </tr>
    <tr>
        <td>12</td>
        <td>42</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/trapping-rain-water/">接雨水</a></td>
        <td>48.4%</td>
        <td>困难</td>
        <td>3</td>
        <td>0.445</td>
    </tr>
    <tr>
        <td>13</td>
        <td>146</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lru-cache/">LRU缓存机制</a></td>
        <td>45.4%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.632</td>
    </tr>
    <tr>
        <td>14</td>
        <td>200</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-islands/">岛屿数量</a></td>
        <td>46.9%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.446</td>
    </tr>
    <tr>
        <td>15</td>
        <td>468</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/validate-ip-address/">验证IP地址</a></td>
        <td>21.5%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.607</td>
    </tr>
    <tr>
        <td>16</td>
        <td>780</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reaching-points/">到达终点</a></td>
        <td>27.2%</td>
        <td>困难</td>
        <td>3</td>
        <td>2.872</td>
    </tr>
    <tr>
        <td>17</td>
        <td>5</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-palindromic-substring/">最长回文子串</a></td>
        <td>28.4%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.148</td>
    </tr>
    <tr>
        <td>18</td>
        <td>127</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-ladder/">单词接龙</a></td>
        <td>39.5%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.667</td>
    </tr>
    <tr>
        <td>19</td>
        <td>296</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-meeting-point/">最佳的碰头地点</a></td>
        <td>62.0%</td>
        <td>困难</td>
        <td>3</td>
        <td>3.045</td>
    </tr>
    <tr>
        <td>20</td>
        <td>547</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/friend-circles/">朋友圈</a></td>
        <td>54.6%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.668</td>
    </tr>
    <tr>
        <td>21</td>
        <td>139</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-break/">单词拆分</a></td>
        <td>43.1%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.425</td>
    </tr>
    <tr>
        <td>22</td>
        <td>355</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-twitter/">设计推特</a></td>
        <td>36.7%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.717</td>
    </tr>
    <tr>
        <td>23</td>
        <td>608</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/tree-node/">树节点</a></td>
        <td>68.0%</td>
        <td>中等</td>
        <td>3</td>
        <td>2.494</td>
    </tr>
    <tr>
        <td>24</td>
        <td>295</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-median-from-data-stream/">数据流的中位数</a></td>
        <td>42.0%</td>
        <td>困难</td>
        <td>3</td>
        <td>0.892</td>
    </tr>
    <tr>
        <td>25</td>
        <td>300</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-increasing-subsequence/">最长上升子序列</a></td>
        <td>43.9%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.321</td>
    </tr>
    <tr>
        <td>26</td>
        <td>10</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/regular-expression-matching/">正则表达式匹配</a></td>
        <td>26.0%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.255</td>
    </tr>
    <tr>
        <td>27</td>
        <td>13</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/roman-to-integer/">罗马数字转整数</a></td>
        <td>60.6%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.111</td>
    </tr>
    <tr>
        <td>28</td>
        <td>238</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/product-of-array-except-self/">除自身以外数组的乘积</a></td>
        <td>66.0%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.382</td>
    </tr>
    <tr>
        <td>29</td>
        <td>679</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/24-game/">24 点游戏</a></td>
        <td>40.8%</td>
        <td>困难</td>
        <td>2</td>
        <td>1.63</td>
    </tr>
    <tr>
        <td>30</td>
        <td>12</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/integer-to-roman/">整数转罗马数字</a></td>
        <td>62.5%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.178</td>
    </tr>
    <tr>
        <td>31</td>
        <td>23</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-k-sorted-lists/">合并K个排序链表</a></td>
        <td>48.7%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.178</td>
    </tr>
    <tr>
        <td>32</td>
        <td>149</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/max-points-on-a-line/">直线上最多的点数</a></td>
        <td>20.4%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.818</td>
    </tr>
    <tr>
        <td>33</td>
        <td>161</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/one-edit-distance/">相隔为 1 的编辑距离</a></td>
        <td>31.6%</td>
        <td>中等</td>
        <td>2</td>
        <td>1.557</td>
    </tr>
    <tr>
        <td>34</td>
        <td>208</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/implement-trie-prefix-tree/">实现 Trie (前缀树)</a>
        </td>
        <td>64.3%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.35</td>
    </tr>
    <tr>
        <td>35</td>
        <td>218</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/the-skyline-problem/">天际线问题</a></td>
        <td>40.3%</td>
        <td>困难</td>
        <td>2</td>
        <td>1.12</td>
    </tr>
    <tr>
        <td>36</td>
        <td>585</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/investments-in-2016/">2016年的投资</a></td>
        <td>52.6%</td>
        <td>中等</td>
        <td>2</td>
        <td>2.012</td>
    </tr>
    <tr>
        <td>37</td>
        <td>91</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/decode-ways/">解码方法</a></td>
        <td>23.0%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.25</td>
    </tr>
    <tr>
        <td>38</td>
        <td>133</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/clone-graph/">克隆图</a></td>
        <td>48.7%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.588</td>
    </tr>
    <tr>
        <td>39</td>
        <td>307</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/range-sum-query-mutable/">区域和检索 - 数组可修改</a></td>
        <td>53.5%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.979</td>
    </tr>
    <tr>
        <td>40</td>
        <td>84</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/largest-rectangle-in-histogram/">柱状图中最大的矩形</a>
        </td>
        <td>38.7%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.306</td>
    </tr>
    <tr>
        <td>41</td>
        <td>215</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/kth-largest-element-in-an-array/">数组中的第K个最大元素</a>
        </td>
        <td>60.9%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.166</td>
    </tr>
    <tr>
        <td>42</td>
        <td>14</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-common-prefix/">最长公共前缀</a></td>
        <td>36.1%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.071</td>
    </tr>
    <tr>
        <td>43</td>
        <td>43</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/multiply-strings/">字符串相乘</a></td>
        <td>41.5%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.226</td>
    </tr>
    <tr>
        <td>44</td>
        <td>202</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/happy-number/">快乐数</a></td>
        <td>57.1%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.225</td>
    </tr>
    <tr>
        <td>45</td>
        <td>53</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-subarray/">最大子序和</a></td>
        <td>49.0%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.071</td>
    </tr>
    <tr>
        <td>46</td>
        <td>68</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/text-justification/">文本左右对齐</a></td>
        <td>42.1%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.852</td>
    </tr>
    <tr>
        <td>47</td>
        <td>287</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-the-duplicate-number/">寻找重复数</a></td>
        <td>62.8%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.246</td>
    </tr>
    <tr>
        <td>48</td>
        <td>140</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-break-ii/">单词拆分 II</a></td>
        <td>37.7%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.499</td>
    </tr>
    <tr>
        <td>49</td>
        <td>380</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/insert-delete-getrandom-o1/">常数时间插入、删除和获取随机元素</a>
        </td>
        <td>47.7%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.606</td>
    </tr>
    <tr>
        <td>50</td>
        <td>580</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/count-student-number-in-departments/">统计各专业学生人数</a></td>
        <td>48.9%</td>
        <td>中等</td>
        <td>2</td>
        <td>1.622</td>
    </tr>
    <tr>
        <td>51</td>
        <td>72</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/edit-distance/">编辑距离</a></td>
        <td>56.1%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.221</td>
    </tr>
    <tr>
        <td>52</td>
        <td>234</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindrome-linked-list/">回文链表</a></td>
        <td>40.2%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.136</td>
    </tr>
    <tr>
        <td>53</td>
        <td>252</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/meeting-rooms/">会议室</a></td>
        <td>51.7%</td>
        <td>简单</td>
        <td>2</td>
        <td>1.053</td>
    </tr>
    <tr>
        <td>54</td>
        <td>532</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/k-diff-pairs-in-an-array/">数组中的K-diff数对</a></td>
        <td>33.6%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.534</td>
    </tr>
    <tr>
        <td>55</td>
        <td>528</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/random-pick-with-weight/">按权重随机选择</a></td>
        <td>40.5%</td>
        <td>中等</td>
        <td>2</td>
        <td>1.514</td>
    </tr>
    <tr>
        <td>56</td>
        <td>347</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/top-k-frequent-elements/">前 K 个高频元素</a></td>
        <td>60.1%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.205</td>
    </tr>
    <tr>
        <td>57</td>
        <td>15</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/3sum/">三数之和</a></td>
        <td>25.4%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.06</td>
    </tr>
    <tr>
        <td>58</td>
        <td>212</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-search-ii/">单词搜索 II</a></td>
        <td>39.1%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.588</td>
    </tr>
    <tr>
        <td>59</td>
        <td>7</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-integer/">整数反转</a></td>
        <td>33.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.034</td>
    </tr>
    <tr>
        <td>60</td>
        <td>60</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/permutation-sequence/">第k个排列</a></td>
        <td>48.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.25</td>
    </tr>
    <tr>
        <td>61</td>
        <td>206</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-linked-list/">反转链表</a></td>
        <td>66.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.054</td>
    </tr>
    <tr>
        <td>62</td>
        <td>235</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-search-tree/">二叉搜索树的最近公共祖先</a>
        </td>
        <td>62.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.176</td>
    </tr>
    <tr>
        <td>63</td>
        <td>251</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/flatten-2d-vector/">展开二维向量</a></td>
        <td>51.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.634</td>
    </tr>
    <tr>
        <td>64</td>
        <td>2</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/add-two-numbers/">两数相加</a></td>
        <td>36.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.028</td>
    </tr>
    <tr>
        <td>65</td>
        <td>4</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/median-of-two-sorted-arrays/">寻找两个有序数组的中位数</a>
        </td>
        <td>36.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.061</td>
    </tr>
    <tr>
        <td>66</td>
        <td>11</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/container-with-most-water/">盛最多水的容器</a></td>
        <td>61.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.053</td>
    </tr>
    <tr>
        <td>67</td>
        <td>36</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-sudoku/">有效的数独</a></td>
        <td>58.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.141</td>
    </tr>
    <tr>
        <td>68</td>
        <td>239</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sliding-window-maximum/">滑动窗口最大值</a></td>
        <td>43.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.216</td>
    </tr>
    <tr>
        <td>69</td>
        <td>346</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/moving-average-from-data-stream/">数据流中的移动平均值</a>
        </td>
        <td>69.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.911</td>
    </tr>
    <tr>
        <td>70</td>
        <td>945</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-increment-to-make-array-unique/">使数组唯一的最小增量</a>
        </td>
        <td>42.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.019</td>
    </tr>
    <tr>
        <td>71</td>
        <td>136</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/single-number/">只出现一次的数字</a></td>
        <td>65.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.064</td>
    </tr>
    <tr>
        <td>72</td>
        <td>153</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array/">寻找旋转排序数组中的最小值</a>
        </td>
        <td>50.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.194</td>
    </tr>
    <tr>
        <td>73</td>
        <td>224</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/basic-calculator/">基本计算器</a></td>
        <td>36.8%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.527</td>
    </tr>
    <tr>
        <td>74</td>
        <td>609</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-duplicate-file-in-system/">在系统中查找重复文件</a>
        </td>
        <td>54.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.417</td>
    </tr>
    <tr>
        <td>75</td>
        <td>187</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/repeated-dna-sequences/">重复的DNA序列</a></td>
        <td>43.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.449</td>
    </tr>
    <tr>
        <td>76</td>
        <td>227</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/basic-calculator-ii/">基本计算器 II</a></td>
        <td>34.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.442</td>
    </tr>
    <tr>
        <td>77</td>
        <td>304</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/range-sum-query-2d-immutable/">二维区域和检索 - 矩阵不可变</a>
        </td>
        <td>42.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.569</td>
    </tr>
    <tr>
        <td>78</td>
        <td>317</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/shortest-distance-from-all-buildings/">离建筑物最近的距离</a></td>
        <td>43.5%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.892</td>
    </tr>
    <tr>
        <td>79</td>
        <td>322</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/coin-change/">零钱兑换</a></td>
        <td>37.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.153</td>
    </tr>
    <tr>
        <td>80</td>
        <td>336</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindrome-pairs/">回文对</a></td>
        <td>33.0%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.069</td>
    </tr>
    <tr>
        <td>81</td>
        <td>344</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-string/">反转字符串</a></td>
        <td>68.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.088</td>
    </tr>
    <tr>
        <td>82</td>
        <td>348</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-tic-tac-toe/">判定井字棋胜负</a></td>
        <td>56.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.248</td>
    </tr>
    <tr>
        <td>83</td>
        <td>692</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/top-k-frequent-words/">前K个高频单词</a></td>
        <td>48.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.596</td>
    </tr>
    <tr>
        <td>84</td>
        <td>44</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/wildcard-matching/">通配符匹配</a></td>
        <td>26.4%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.201</td>
    </tr>
    <tr>
        <td>85</td>
        <td>118</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/pascals-triangle/">杨辉三角</a></td>
        <td>65.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.085</td>
    </tr>
    <tr>
        <td>86</td>
        <td>323</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/number-of-connected-components-in-an-undirected-graph/">无向图中连通分量的数目</a>
        </td>
        <td>54.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.265</td>
    </tr>
    <tr>
        <td>87</td>
        <td>378</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/kth-smallest-element-in-a-sorted-matrix/">有序矩阵中第K小的元素</a>
        </td>
        <td>57.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.3</td>
    </tr>
    <tr>
        <td>88</td>
        <td>586</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/customer-placing-the-largest-number-of-orders/">订单最多的客户</a>
        </td>
        <td>71.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>1.04</td>
    </tr>
    <tr>
        <td>89</td>
        <td>831</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/masking-personal-information/">隐藏个人信息</a></td>
        <td>37.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.126</td>
    </tr>
    <tr>
        <td>90</td>
        <td>868</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-gap/">二进制间距</a></td>
        <td>60.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.615</td>
    </tr>
    <tr>
        <td>91</td>
        <td>1206</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-skiplist/">设计跳表</a></td>
        <td>54.2%</td>
        <td>困难</td>
        <td>1</td>
        <td>2.209</td>
    </tr>
    <tr>
        <td>92</td>
        <td>3</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-substring-without-repeating-characters/">无重复字符的最长子串</a>
        </td>
        <td>32.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.022</td>
    </tr>
    <tr>
        <td>93</td>
        <td>17</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/letter-combinations-of-a-phone-number/">电话号码的字母组合</a></td>
        <td>52.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.059</td>
    </tr>
    <tr>
        <td>94</td>
        <td>22</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/generate-parentheses/">括号生成</a></td>
        <td>73.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.063</td>
    </tr>
    <tr>
        <td>95</td>
        <td>33</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-in-rotated-sorted-array/">搜索旋转排序数组</a></td>
        <td>36.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.068</td>
    </tr>
    <tr>
        <td>96</td>
        <td>41</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/first-missing-positive/">缺失的第一个正数</a></td>
        <td>37.5%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.137</td>
    </tr>
    <tr>
        <td>97</td>
        <td>46</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/permutations/">全排列</a></td>
        <td>73.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.07</td>
    </tr>
    <tr>
        <td>98</td>
        <td>49</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/group-anagrams/">字母异位词分组</a></td>
        <td>60.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.099</td>
    </tr>
    <tr>
        <td>99</td>
        <td>50</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/powx-n/">Pow(x, n)</a></td>
        <td>33.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.092</td>
    </tr>
    <tr>
        <td>100</td>
        <td>63</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/unique-paths-ii/">不同路径 II</a></td>
        <td>32.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.102</td>
    </tr>
    <tr>
        <td>101</td>
        <td>69</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sqrtx/">x 的平方根</a></td>
        <td>37.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.065</td>
    </tr>
    <tr>
        <td>102</td>
        <td>76</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-window-substring/">最小覆盖子串</a></td>
        <td>35.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.166</td>
    </tr>
    <tr>
        <td>103</td>
        <td>101</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/symmetric-tree/">对称二叉树</a></td>
        <td>49.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.053</td>
    </tr>
    <tr>
        <td>104</td>
        <td>105</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal/">从前序与中序遍历序列构造二叉树</a>
        </td>
        <td>64.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.107</td>
    </tr>
    <tr>
        <td>105</td>
        <td>124</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-maximum-path-sum/">二叉树中的最大路径和</a></td>
        <td>39.2%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.18</td>
    </tr>
    <tr>
        <td>106</td>
        <td>169</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/majority-element/">多数元素</a></td>
        <td>61.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.063</td>
    </tr>
    <tr>
        <td>107</td>
        <td>706</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-hashmap/">设计哈希映射</a></td>
        <td>55.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.437</td>
    </tr>
    <tr>
        <td>108</td>
        <td>920</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-music-playlists/">播放列表的数量</a></td>
        <td>42.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.88</td>
    </tr>
    <tr>
        <td>109</td>
        <td>929</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/unique-email-addresses/">独特的电子邮件地址</a></td>
        <td>63.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.525</td>
    </tr>
    <tr>
        <td>110</td>
        <td>981</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/time-based-key-value-store/">基于时间的键值存储</a></td>
        <td>35.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.309</td>
    </tr>
    <tr>
        <td>111</td>
        <td>73</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/set-matrix-zeroes/">矩阵置零</a></td>
        <td>55.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.163</td>
    </tr>
    <tr>
        <td>112</td>
        <td>74</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-a-2d-matrix/">搜索二维矩阵</a></td>
        <td>37.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.132</td>
    </tr>
    <tr>
        <td>113</td>
        <td>126</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-ladder-ii/">单词接龙 II</a></td>
        <td>31.2%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.523</td>
    </tr>
    <tr>
        <td>114</td>
        <td>204</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/count-primes/">计数质数</a></td>
        <td>32.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.133</td>
    </tr>
    <tr>
        <td>115</td>
        <td>253</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/meeting-rooms-ii/">会议室 II</a></td>
        <td>40.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.513</td>
    </tr>
    <tr>
        <td>116</td>
        <td>767</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reorganize-string/">重构字符串</a></td>
        <td>38.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.637</td>
    </tr>
    <tr>
        <td>117</td>
        <td>210</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/course-schedule-ii/">课程表 II</a></td>
        <td>46.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.277</td>
    </tr>
    <tr>
        <td>118</td>
        <td>104</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-depth-of-binary-tree/">二叉树的最大深度</a></td>
        <td>72.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.045</td>
    </tr>
    <tr>
        <td>119</td>
        <td>141</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/linked-list-cycle/">环形链表</a></td>
        <td>46.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.051</td>
    </tr>
    <tr>
        <td>120</td>
        <td>172</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/factorial-trailing-zeroes/">阶乘后的零</a></td>
        <td>39.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.15</td>
    </tr>
    <tr>
        <td>121</td>
        <td>205</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/isomorphic-strings/">同构字符串</a></td>
        <td>47.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.172</td>
    </tr>
    <tr>
        <td>122</td>
        <td>286</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/walls-and-gates/">墙与门</a></td>
        <td>44.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.879</td>
    </tr>
    <tr>
        <td>123</td>
        <td>518</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/coin-change-2/">零钱兑换 II</a></td>
        <td>47.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.492</td>
    </tr>
    <tr>
        <td>124</td>
        <td>1347</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/minimum-number-of-steps-to-make-two-strings-anagram/">制造字母异位词的最小步骤数</a>
        </td>
        <td>66.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.166</td>
    </tr>
    <tr>
        <td>125</td>
        <td>1348</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/tweet-counts-per-frequency/">推文计数</a></td>
        <td>21.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.28</td>
    </tr>
    <tr>
        <td>126</td>
        <td>9</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindrome-number/">回文数</a></td>
        <td>57.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.021</td>
    </tr>
    <tr>
        <td>127</td>
        <td>6</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/zigzag-conversion/">Z 字形变换</a></td>
        <td>46.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.041</td>
    </tr>
    <tr>
        <td>128</td>
        <td>31</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/next-permutation/">下一个排列</a></td>
        <td>32.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.063</td>
    </tr>
    <tr>
        <td>129</td>
        <td>34</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array/">在排序数组中查找元素的第一个和最后一个位置</a>
        </td>
        <td>38.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.048</td>
    </tr>
    <tr>
        <td>130</td>
        <td>48</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rotate-image/">旋转图像</a></td>
        <td>66.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.063</td>
    </tr>
    <tr>
        <td>131</td>
        <td>64</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-path-sum/">最小路径和</a></td>
        <td>64.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.051</td>
    </tr>
    <tr>
        <td>132</td>
        <td>65</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-number/">有效数字</a></td>
        <td>17.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.291</td>
    </tr>
    <tr>
        <td>133</td>
        <td>71</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/simplify-path/">简化路径</a></td>
        <td>38.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.102</td>
    </tr>
    <tr>
        <td>134</td>
        <td>106</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/construct-binary-tree-from-inorder-and-postorder-traversal/">从中序与后序遍历序列构造二叉树</a>
        </td>
        <td>66.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.12</td>
    </tr>
    <tr>
        <td>135</td>
        <td>226</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/invert-binary-tree/">翻转二叉树</a></td>
        <td>73.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.055</td>
    </tr>
    <tr>
        <td>136</td>
        <td>268</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/missing-number/">缺失数字</a></td>
        <td>54.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.082</td>
    </tr>
    <tr>
        <td>137</td>
        <td>271</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/encode-and-decode-strings/">字符串的编码与解码</a></td>
        <td>50.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.253</td>
    </tr>
    <tr>
        <td>138</td>
        <td>435</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/non-overlapping-intervals/">无重叠区间</a></td>
        <td>44.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.265</td>
    </tr>
    <tr>
        <td>139</td>
        <td>490</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/the-maze/">迷宫</a></td>
        <td>44.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.991</td>
    </tr>
    <tr>
        <td>140</td>
        <td>496</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/next-greater-element-i/">下一个更大元素 I</a></td>
        <td>62.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.156</td>
    </tr>
    <tr>
        <td>141</td>
        <td>724</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-pivot-index/">寻找数组的中心索引</a></td>
        <td>36.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.123</td>
    </tr>
    <tr>
        <td>142</td>
        <td>814</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-pruning/">二叉树剪枝</a></td>
        <td>72.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.428</td>
    </tr>
    <tr>
        <td>143</td>
        <td>1041</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/robot-bounded-in-circle/">困于环中的机器人</a></td>
        <td>43.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.932</td>
    </tr>
    <tr>
        <td>144</td>
        <td>171</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/excel-sheet-column-number/">Excel表列序号</a></td>
        <td>66.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.111</td>
    </tr>
    <tr>
        <td>145</td>
        <td>453</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-moves-to-equal-array-elements/">最小移动次数使数组元素相等</a>
        </td>
        <td>53.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.338</td>
    </tr>
    <tr>
        <td>146</td>
        <td>482</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/license-key-formatting/">密钥格式化</a></td>
        <td>38.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.273</td>
    </tr>
    <tr>
        <td>147</td>
        <td>582</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/kill-process/">杀死进程</a></td>
        <td>33.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.778</td>
    </tr>
    <tr>
        <td>148</td>
        <td>636</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/exclusive-time-of-functions/">函数的独占时间</a></td>
        <td>48.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.759</td>
    </tr>
    <tr>
        <td>149</td>
        <td>128</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-consecutive-sequence/">最长连续序列</a></td>
        <td>47.6%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.133</td>
    </tr>
    <tr>
        <td>150</td>
        <td>40</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/combination-sum-ii/">组合总和 II</a></td>
        <td>59.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.08</td>
    </tr>
    <tr>
        <td>151</td>
        <td>32</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-valid-parentheses/">最长有效括号</a></td>
        <td>29.5%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.072</td>
    </tr>
    <tr>
        <td>152</td>
        <td>51</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/n-queens/">N皇后</a></td>
        <td>67.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.117</td>
    </tr>
    <tr>
        <td>153</td>
        <td>54</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/spiral-matrix/">螺旋矩阵</a></td>
        <td>38.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.075</td>
    </tr>
    <tr>
        <td>154</td>
        <td>121</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock/">买卖股票的最佳时机</a>
        </td>
        <td>52.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.03</td>
    </tr>
    <tr>
        <td>155</td>
        <td>138</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/copy-list-with-random-pointer/">复制带随机指针的链表</a>
        </td>
        <td>43.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.14</td>
    </tr>
    <tr>
        <td>156</td>
        <td>148</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sort-list/">排序链表</a></td>
        <td>63.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.083</td>
    </tr>
    <tr>
        <td>157</td>
        <td>151</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-words-in-a-string/">翻转字符串里的单词</a></td>
        <td>35.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.108</td>
    </tr>
    <tr>
        <td>158</td>
        <td>157</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/read-n-characters-given-read4/">用 Read4 读取 N
            个字符</a></td>
        <td>51.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.787</td>
    </tr>
    <tr>
        <td>159</td>
        <td>198</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/house-robber/">打家劫舍</a></td>
        <td>42.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.043</td>
    </tr>
    <tr>
        <td>160</td>
        <td>207</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/course-schedule/">课程表</a></td>
        <td>49.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.128</td>
    </tr>
    <tr>
        <td>161</td>
        <td>220</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/contains-duplicate-iii/">存在重复元素 III</a></td>
        <td>25.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.202</td>
    </tr>
    <tr>
        <td>162</td>
        <td>236</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree/">二叉树的最近公共祖先</a>
        </td>
        <td>59.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.075</td>
    </tr>
    <tr>
        <td>163</td>
        <td>237</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/delete-node-in-a-linked-list/">删除链表中的节点</a></td>
        <td>79.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.052</td>
    </tr>
    <tr>
        <td>164</td>
        <td>263</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/ugly-number/">丑数</a></td>
        <td>48.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.122</td>
    </tr>
    <tr>
        <td>165</td>
        <td>264</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/ugly-number-ii/">丑数 II</a></td>
        <td>49.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.153</td>
    </tr>
    <tr>
        <td>166</td>
        <td>277</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-the-celebrity/">搜寻名人</a></td>
        <td>57.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.753</td>
    </tr>
    <tr>
        <td>167</td>
        <td>285</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/inorder-successor-in-bst/">二叉搜索树中的顺序后继</a></td>
        <td>59.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.725</td>
    </tr>
    <tr>
        <td>168</td>
        <td>329</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/longest-increasing-path-in-a-matrix/">矩阵中的最长递增路径</a></td>
        <td>39.6%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.282</td>
    </tr>
    <tr>
        <td>169</td>
        <td>362</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-hit-counter/">敲击计数器</a></td>
        <td>69.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.048</td>
    </tr>
    <tr>
        <td>170</td>
        <td>388</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-absolute-file-path/">文件的最长绝对路径</a></td>
        <td>43.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.756</td>
    </tr>
    <tr>
        <td>171</td>
        <td>460</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lfu-cache/">LFU缓存</a></td>
        <td>33.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.781</td>
    </tr>
    <tr>
        <td>172</td>
        <td>1326</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/minimum-number-of-taps-to-open-to-water-a-garden/">灌溉花园的最少水龙头数目</a>
        </td>
        <td>43.4%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.224</td>
    </tr>
    <tr>
        <td>173</td>
        <td>434</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-segments-in-a-string/">字符串中的单词数</a></td>
        <td>33.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.111</td>
    </tr>
    <tr>
        <td>174</td>
        <td>1007</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-domino-rotations-for-equal-row/">行相等的最少多米诺旋转</a>
        </td>
        <td>43.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.465</td>
    </tr>
    <tr>
        <td>175</td>
        <td>397</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/integer-replacement/">整数替换</a></td>
        <td>33.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.278</td>
    </tr>
    <tr>
        <td>176</td>
        <td>407</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/trapping-rain-water-ii/">接雨水 II</a></td>
        <td>34.4%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.394</td>
    </tr>
    <tr>
        <td>177</td>
        <td>16</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/3sum-closest/">最接近的三数之和</a></td>
        <td>42.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.024</td>
    </tr>
    <tr>
        <td>178</td>
        <td>18</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/4sum/">四数之和</a></td>
        <td>37.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.032</td>
    </tr>
    <tr>
        <td>179</td>
        <td>38</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/count-and-say/">外观数列</a></td>
        <td>54.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.027</td>
    </tr>
    <tr>
        <td>180</td>
        <td>61</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rotate-list/">旋转链表</a></td>
        <td>39.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.038</td>
    </tr>
    <tr>
        <td>181</td>
        <td>223</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rectangle-area/">矩形面积</a></td>
        <td>42.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.207</td>
    </tr>
    <tr>
        <td>182</td>
        <td>274</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/h-index/">H指数</a></td>
        <td>37.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.158</td>
    </tr>
    <tr>
        <td>183</td>
        <td>350</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/intersection-of-two-arrays-ii/">两个数组的交集 II</a>
        </td>
        <td>46.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.037</td>
    </tr>
    <tr>
        <td>184</td>
        <td>352</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/data-stream-as-disjoint-intervals/">将数据流变为多个不相交区间</a></td>
        <td>51.4%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.765</td>
    </tr>
    <tr>
        <td>185</td>
        <td>357</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/count-numbers-with-unique-digits/">计算各个位数不同的数字个数</a></td>
        <td>49.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.184</td>
    </tr>
    <tr>
        <td>186</td>
        <td>541</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-string-ii/">反转字符串 II</a></td>
        <td>51.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.142</td>
    </tr>
    <tr>
        <td>187</td>
        <td>605</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/can-place-flowers/">种花问题</a></td>
        <td>31.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.092</td>
    </tr>
    <tr>
        <td>188</td>
        <td>642</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-search-autocomplete-system/">设计搜索自动补全系统</a>
        </td>
        <td>40.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.922</td>
    </tr>
    <tr>
        <td>189</td>
        <td>657</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/robot-return-to-origin/">机器人能否返回原点</a></td>
        <td>73.2%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.108</td>
    </tr>
    <tr>
        <td>190</td>
        <td>665</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/non-decreasing-array/">非递减数列</a></td>
        <td>21.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.085</td>
    </tr>
    <tr>
        <td>191</td>
        <td>695</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/max-area-of-island/">岛屿的最大面积</a></td>
        <td>59.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.089</td>
    </tr>
    <tr>
        <td>192</td>
        <td>835</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/image-overlap/">图像重叠</a></td>
        <td>57.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.688</td>
    </tr>
    <tr>
        <td>193</td>
        <td>841</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/keys-and-rooms/">钥匙和房间</a></td>
        <td>59.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.173</td>
    </tr>
    <tr>
        <td>194</td>
        <td>984</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/string-without-aaa-or-bbb/">不含 AAA 或 BBB 的字符串</a>
        </td>
        <td>35.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.45</td>
    </tr>
    <tr>
        <td>195</td>
        <td>1057</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/campus-bikes/">校园自行车分配</a></td>
        <td>33.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.626</td>
    </tr>
    <tr>
        <td>196</td>
        <td>79</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-search/">单词搜索</a></td>
        <td>40.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.04</td>
    </tr>
    <tr>
        <td>197</td>
        <td>122</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-ii/">买卖股票的最佳时机
            II</a></td>
        <td>57.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.018</td>
    </tr>
    <tr>
        <td>198</td>
        <td>168</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/excel-sheet-column-title/">Excel表列名称</a></td>
        <td>36.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.074</td>
    </tr>
    <tr>
        <td>199</td>
        <td>185</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/department-top-three-salaries/">部门工资前三高的所有员工</a>
        </td>
        <td>41.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.147</td>
    </tr>
    <tr>
        <td>200</td>
        <td>283</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/move-zeroes/">移动零</a></td>
        <td>59.2%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.022</td>
    </tr>
    <tr>
        <td>201</td>
        <td>385</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/mini-parser/">迷你语法分析器</a></td>
        <td>40.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.427</td>
    </tr>
    <tr>
        <td>202</td>
        <td>461</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/hamming-distance/">汉明距离</a></td>
        <td>74.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.047</td>
    </tr>
    <tr>
        <td>203</td>
        <td>473</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/matchsticks-to-square/">火柴拼正方形</a></td>
        <td>36.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.271</td>
    </tr>
    <tr>
        <td>204</td>
        <td>505</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/the-maze-ii/">迷宫 II</a></td>
        <td>43.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.811</td>
    </tr>
    <tr>
        <td>205</td>
        <td>523</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/continuous-subarray-sum/">连续的子数组和</a></td>
        <td>22.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.192</td>
    </tr>
    <tr>
        <td>206</td>
        <td>535</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/encode-and-decode-tinyurl/">TinyURL 的加密与解密</a>
        </td>
        <td>81.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.248</td>
    </tr>
    <tr>
        <td>207</td>
        <td>542</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/01-matrix/">01 矩阵</a></td>
        <td>37.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.156</td>
    </tr>
    <tr>
        <td>208</td>
        <td>560</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/subarray-sum-equals-k/">和为K的子数组</a></td>
        <td>43.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.089</td>
    </tr>
    <tr>
        <td>209</td>
        <td>621</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/task-scheduler/">任务调度器</a></td>
        <td>47.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.095</td>
    </tr>
    <tr>
        <td>210</td>
        <td>640</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/solve-the-equation/">求解方程</a></td>
        <td>40.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.678</td>
    </tr>
    <tr>
        <td>211</td>
        <td>694</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-distinct-islands/">不同岛屿的数量</a></td>
        <td>44.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.832</td>
    </tr>
    <tr>
        <td>212</td>
        <td>715</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/range-module/">Range 模块</a></td>
        <td>32.1%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.013</td>
    </tr>
    <tr>
        <td>213</td>
        <td>718</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray/">最长重复子数组</a>
        </td>
        <td>48.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.183</td>
    </tr>
    <tr>
        <td>214</td>
        <td>730</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/count-different-palindromic-subsequences/">统计不同回文子字符串</a>
        </td>
        <td>45.1%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.099</td>
    </tr>
    <tr>
        <td>215</td>
        <td>821</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/shortest-distance-to-a-character/">字符的最短距离</a>
        </td>
        <td>66.2%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.215</td>
    </tr>
    <tr>
        <td>216</td>
        <td>884</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/uncommon-words-from-two-sentences/">两句话中的不常见单词</a>
        </td>
        <td>60.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.226</td>
    </tr>
    <tr>
        <td>217</td>
        <td>850</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rectangle-area-ii/">矩形面积 II</a></td>
        <td>39.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.073</td>
    </tr>
    <tr>
        <td>218</td>
        <td>387</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/first-unique-character-in-a-string/">字符串中的第一个唯一字符</a></td>
        <td>43.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.041</td>
    </tr>
    <tr>
        <td>219</td>
        <td>659</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/split-array-into-consecutive-subsequences/">分割数组为连续子序列</a>
        </td>
        <td>40.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.454</td>
    </tr>
    <tr>
        <td>220</td>
        <td>265</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/paint-house-ii/">粉刷房子 II</a></td>
        <td>51.2%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.651</td>
    </tr>
    <tr>
        <td>221</td>
        <td>716</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/max-stack/">最大栈</a></td>
        <td>42.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.61</td>
    </tr>
    <tr>
        <td>222</td>
        <td>8</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/string-to-integer-atoi/">字符串转换整数 (atoi)</a></td>
        <td>19.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.018</td>
    </tr>
    <tr>
        <td>223</td>
        <td>28</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/implement-strstr/">实现 strStr()</a></td>
        <td>39.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.017</td>
    </tr>
    <tr>
        <td>224</td>
        <td>39</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/combination-sum/">组合总和</a></td>
        <td>68.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.028</td>
    </tr>
    <tr>
        <td>225</td>
        <td>55</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/jump-game/">跳跃游戏</a></td>
        <td>38.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.028</td>
    </tr>
    <tr>
        <td>226</td>
        <td>59</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/spiral-matrix-ii/">螺旋矩阵 II</a></td>
        <td>76.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.058</td>
    </tr>
    <tr>
        <td>227</td>
        <td>70</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/climbing-stairs/">爬楼梯</a></td>
        <td>47.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.013</td>
    </tr>
    <tr>
        <td>228</td>
        <td>75</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sort-colors/">颜色分类</a></td>
        <td>54.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.03</td>
    </tr>
    <tr>
        <td>229</td>
        <td>85</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximal-rectangle/">最大矩形</a></td>
        <td>44.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.078</td>
    </tr>
    <tr>
        <td>230</td>
        <td>93</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/restore-ip-addresses/">复原IP地址</a></td>
        <td>45.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.069</td>
    </tr>
    <tr>
        <td>231</td>
        <td>96</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/unique-binary-search-trees/">不同的二叉搜索树</a></td>
        <td>64.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.043</td>
    </tr>
    <tr>
        <td>232</td>
        <td>98</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/validate-binary-search-tree/">验证二叉搜索树</a></td>
        <td>28.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.025</td>
    </tr>
    <tr>
        <td>233</td>
        <td>102</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-level-order-traversal/">二叉树的层次遍历</a>
        </td>
        <td>60.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.023</td>
    </tr>
    <tr>
        <td>234</td>
        <td>110</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/balanced-binary-tree/">平衡二叉树</a></td>
        <td>50.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.032</td>
    </tr>
    <tr>
        <td>235</td>
        <td>111</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-depth-of-binary-tree/">二叉树的最小深度</a></td>
        <td>41.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.031</td>
    </tr>
    <tr>
        <td>236</td>
        <td>115</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/distinct-subsequences/">不同的子序列</a></td>
        <td>46.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.153</td>
    </tr>
    <tr>
        <td>237</td>
        <td>119</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/pascals-triangle-ii/">杨辉三角 II</a></td>
        <td>59.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.041</td>
    </tr>
    <tr>
        <td>238</td>
        <td>134</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/gas-station/">加油站</a></td>
        <td>50.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.066</td>
    </tr>
    <tr>
        <td>239</td>
        <td>152</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-product-subarray/">乘积最大子序列</a></td>
        <td>37.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.041</td>
    </tr>
    <tr>
        <td>240</td>
        <td>158</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/read-n-characters-given-read4-ii-call-multiple-times/">用 Read4 读取
            N 个字符 II</a></td>
        <td>56.2%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.771</td>
    </tr>
    <tr>
        <td>241</td>
        <td>164</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-gap/">最大间距</a></td>
        <td>54.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.193</td>
    </tr>
    <tr>
        <td>242</td>
        <td>173</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-search-tree-iterator/">二叉搜索树迭代器</a></td>
        <td>70.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.093</td>
    </tr>
    <tr>
        <td>243</td>
        <td>176</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/second-highest-salary/">第二高的薪水</a></td>
        <td>33.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.035</td>
    </tr>
    <tr>
        <td>244</td>
        <td>179</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/largest-number/">最大数</a></td>
        <td>35.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.074</td>
    </tr>
    <tr>
        <td>245</td>
        <td>184</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/department-highest-salary/">部门工资最高的员工</a></td>
        <td>43.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.093</td>
    </tr>
    <tr>
        <td>246</td>
        <td>189</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rotate-array/">旋转数组</a></td>
        <td>40.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.025</td>
    </tr>
    <tr>
        <td>247</td>
        <td>193</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-phone-numbers/">有效电话号码</a></td>
        <td>27.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.19</td>
    </tr>
    <tr>
        <td>248</td>
        <td>197</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rising-temperature/">上升的温度</a></td>
        <td>49.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.093</td>
    </tr>
    <tr>
        <td>249</td>
        <td>209</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-size-subarray-sum/">长度最小的子数组</a></td>
        <td>41.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.06</td>
    </tr>
    <tr>
        <td>250</td>
        <td>211</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/add-and-search-word-data-structure-design/">添加与搜索单词
            - 数据结构设计</a></td>
        <td>42.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.17</td>
    </tr>
    <tr>
        <td>251</td>
        <td>214</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/shortest-palindrome/">最短回文串</a></td>
        <td>31.2%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.206</td>
    </tr>
    <tr>
        <td>252</td>
        <td>230</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/kth-smallest-element-in-a-bst/">二叉搜索树中第K小的元素</a>
        </td>
        <td>68.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.053</td>
    </tr>
    <tr>
        <td>253</td>
        <td>232</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/implement-queue-using-stacks/">用栈实现队列</a></td>
        <td>62.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.044</td>
    </tr>
    <tr>
        <td>254</td>
        <td>240</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-a-2d-matrix-ii/">搜索二维矩阵 II</a></td>
        <td>38.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.046</td>
    </tr>
    <tr>
        <td>255</td>
        <td>257</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-paths/">二叉树的所有路径</a></td>
        <td>61.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.06</td>
    </tr>
    <tr>
        <td>256</td>
        <td>273</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/integer-to-english-words/">整数转换英文表示</a></td>
        <td>26.1%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.301</td>
    </tr>
    <tr>
        <td>257</td>
        <td>276</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/paint-fence/">栅栏涂色</a></td>
        <td>42.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.446</td>
    </tr>
    <tr>
        <td>258</td>
        <td>303</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/range-sum-query-immutable/">区域和检索 - 数组不可变</a></td>
        <td>59.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.063</td>
    </tr>
    <tr>
        <td>259</td>
        <td>305</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-islands-ii/">岛屿数量 II</a></td>
        <td>31.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.747</td>
    </tr>
    <tr>
        <td>260</td>
        <td>310</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-height-trees/">最小高度树</a></td>
        <td>33.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.248</td>
    </tr>
    <tr>
        <td>261</td>
        <td>313</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/super-ugly-number/">超级丑数</a></td>
        <td>60.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.231</td>
    </tr>
    <tr>
        <td>262</td>
        <td>314</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/binary-tree-vertical-order-traversal/">二叉树的垂直遍历</a></td>
        <td>52.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.647</td>
    </tr>
    <tr>
        <td>263</td>
        <td>321</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/create-maximum-number/">拼接最大数</a></td>
        <td>26.8%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.407</td>
    </tr>
    <tr>
        <td>264</td>
        <td>325</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-size-subarray-sum-equals-k/">和等于 k
            的最长子数组长度</a></td>
        <td>45.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.495</td>
    </tr>
    <tr>
        <td>265</td>
        <td>359</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/logger-rate-limiter/">日志速率限制器</a></td>
        <td>68.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.448</td>
    </tr>
    <tr>
        <td>266</td>
        <td>400</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/nth-digit/">第N个数字</a></td>
        <td>34.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.282</td>
    </tr>
    <tr>
        <td>267</td>
        <td>402</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/remove-k-digits/">移掉K位数字</a></td>
        <td>27.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.124</td>
    </tr>
    <tr>
        <td>268</td>
        <td>409</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-palindrome/">最长回文串</a></td>
        <td>51.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.096</td>
    </tr>
    <tr>
        <td>269</td>
        <td>432</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/all-oone-data-structure/">全 O(1) 的数据结构</a></td>
        <td>34.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.567</td>
    </tr>
    <tr>
        <td>270</td>
        <td>441</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/arranging-coins/">排列硬币</a></td>
        <td>39.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.118</td>
    </tr>
    <tr>
        <td>271</td>
        <td>472</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/concatenated-words/">连接词</a></td>
        <td>44.5%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.591</td>
    </tr>
    <tr>
        <td>272</td>
        <td>581</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/shortest-unsorted-continuous-subarray/">最短无序连续子数组</a></td>
        <td>33.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.067</td>
    </tr>
    <tr>
        <td>273</td>
        <td>759</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/employee-free-time/">员工空闲时间</a></td>
        <td>56.5%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.309</td>
    </tr>
    <tr>
        <td>274</td>
        <td>771</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/jewels-and-stones/">宝石与石头</a></td>
        <td>81.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.058</td>
    </tr>
    <tr>
        <td>275</td>
        <td>785</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/is-graph-bipartite/">判断二分图</a></td>
        <td>42.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.275</td>
    </tr>
    <tr>
        <td>276</td>
        <td>833</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-and-replace-in-string/">字符串中的查找与替换</a></td>
        <td>37.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.614</td>
    </tr>
    <tr>
        <td>277</td>
        <td>887</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/super-egg-drop/">鸡蛋掉落</a></td>
        <td>20.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.21</td>
    </tr>
    <tr>
        <td>278</td>
        <td>905</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sort-array-by-parity/">按奇偶排序数组</a></td>
        <td>68.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.082</td>
    </tr>
    <tr>
        <td>279</td>
        <td>921</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/minimum-add-to-make-parentheses-valid/">使括号有效的最少添加</a></td>
        <td>70.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.211</td>
    </tr>
    <tr>
        <td>280</td>
        <td>973</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/k-closest-points-to-origin/">最接近原点的 K 个点</a></td>
        <td>57.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.137</td>
    </tr>
    <tr>
        <td>281</td>
        <td>979</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/distribute-coins-in-binary-tree/">在二叉树中分配硬币</a>
        </td>
        <td>65.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.417</td>
    </tr>
    <tr>
        <td>282</td>
        <td>1004</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/max-consecutive-ones-iii/">最大连续1的个数 III</a></td>
        <td>47.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.292</td>
    </tr>
    <tr>
        <td>283</td>
        <td>246</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/strobogrammatic-number/">中心对称数</a></td>
        <td>45.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.417</td>
    </tr>
    <tr>
        <td>284</td>
        <td>66</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/plus-one/">加一</a></td>
        <td>42.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.017</td>
    </tr>
    <tr>
        <td>285</td>
        <td>1289</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-falling-path-sum-ii/">下降路径最小和 II</a></td>
        <td>56.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.581</td>
    </tr>
    <tr>
        <td>286</td>
        <td>405</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/convert-a-number-to-hexadecimal/">数字转换为十六进制数</a>
        </td>
        <td>49.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.166</td>
    </tr>
    <tr>
        <td>287</td>
        <td>155</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/min-stack/">最小栈</a></td>
        <td>51.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.023</td>
    </tr>
    </tbody>
</table>